Main responsibilities:

1. Responsible for backend service module requirement analysis, technical solution design and code development, independently completing complex business module end-to-end delivery

2. Responsible for configuring, optimizing and daily maintenance of the Linux server environment, using Shell scripts to achieve automation of system operations and maintenance, and improving system running efficiency

3. Responsible for MySQL database architecture design, index optimization and slow query governance, supporting high-performance access in large-scale data scenarios

4. Responsible for distributed caching system architecture planning and performance optimization, solving caching performance and stability issues in high concurrency scenarios

Requirements:

1. With at least 3 years of backend development experience in the internet / IT industry, with preference for 5-8 years of relevant experience, overall experience of 5-10 years is ideal

Core technology requirements:

1. PHP Core Skills: PHP is the main development language, familiar with common design patterns and mainstream PHP frameworks, and able to independently complete business analysis, technical architecture design and project deployment

2. Linux and Shell: Proficient in Linux operating system development, configuration and environment optimization, familiar with Shell programming development, and capable of online performance abnormalities Diagnosis and localization

3. MySQL database

4. Distributed caching: Proficient in the principles of distributed caching technology, with large-scale caching system design and performance optimization experience

5. High availability architecture: Have high concurrency and high stability in commercial project development and maintenance, familiar with service high availability architecture design thinking

2. Have online service SLA management, 7 * 24 shift response, failure replay and systematization optimization related experience

4. Have complete project experience from 0 to 1 building or core system architecture restructure of large-scale Internet products